SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)
mare estrus cycle
purpose of Breeding Soundness Exam (BSE) for males
elastrator
prostate gland
2. Larger the cow - more milk is produced; smaller the cow - less milk is produced
Size of cow in relation to the amount of milk produced
visual evaluation (BSE)
Mares
Blood
3. Look for infection - split - and rupture of the penis
effects of BST
eminal vesicles
mastitis
penis and prepuce observation (BSE)
4. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).
Where livelihood is in agriculture
leydid or interstitial cells
hormones
Follical Stimulating in males
5. Prevent the cow from getting an infection from the calve
purpose of Breeding Soundness Exam (BSE) for males
Dairy Cattle Lactation (standard)
organs used in spermatogenesis
Dairy calves are removed from cow at birth to...
6. Failure to have both testis (gonads) descend
estrous
sertoli cells
cryptorchid
purpose of Breeding Soundness Exam (BSE) for males
7. Implies the amount of estrogen production
femininity of a heifer
Hard
organs used in spermatogenesis
cow estrus
8. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.
hypothalamus and pituitary gland
burdizzo
seminiferous tubules
colostrum
9. 26 hours after estrus begins
reasons for castration
kidney stones also called ________ ___________ can develop in the sigmoid flexure
semen evaluation (BSE)
ewe ovulation
10. (switzerland) 2nd in size and milk production - most muscle -
Brown Swiss Cow
effects of BST
seminiferous tubules
castration
11. Not under a timeline - cow can not be sold as steak
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
Lutinizing Hormone in males
ewe estrus cycle
Grading choice
12. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase
age and castration
hypothalamus and pituitary gland
polyestrous
mare's estrous cycle
13. What about the sperm for a bull which has been castrated but still has testicles?
effects of BST
~1 month
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
Size of cow in relation to the amount of milk produced
14. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)
Hormones from both the fetus and the mom.
estrous
monorchid
pelvis
15. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has
rectal palpation (BSE)
ewe estrus cycle
dartos muscle
kidney stones also called ________ ___________ can develop in the sigmoid flexure
16. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.
dry-off time in dairy cattle
cow gestation
van deferens
sow ovulation
17. Parturition is controlled by...
dry-off time in dairy cattle
Hormones from both the fetus and the mom.
Holstein Cow
mastitis
18. Birthing process (termination of gestation)
reason for seasonal breeding periods
accessory sex glands
Parturition
sertoli cells
19. 4-6 days
mare estrus
kidney stones also called ________ ___________ can develop in the sigmoid flexure
Blood
age and castration
20. Not under a timeline - cow can not be sold as steak
Grading choice
ewe estrus cycle
seminiferous tubules
dry matter and water
21. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders
normal presentation of the fetus
Size of cow in relation to the amount of milk produced
effects of BST
Mares
22. 1-2 days
epididymis: definition - 3 parts - 4 functions
ewe estrus
Dairy Cattle milking schedule
what has to happen for males for copulation to occur
23. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)
uterus
Holstein Cow
Lutinizing Hormone in females
feeding a high producing dairy cow
24. Milk is 15% ________ and 85% __________.
Avg. bull specs
dry matter and water
urethra
visual evaluation (BSE)
25. 19-23 (21) days
testis (gonads)
sow estrus cycle
Dairy Cattle Gestation
seminiferous tubules
26. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat
Holstein Cow
reason for seasonal breeding periods
Follical Stimulating in males
cryptorchid
27. ~305 days (altough often longer due to breeding difficulties)
feeding a high producing dairy cow
cryptorchid
growth lost from castration methods (knife & band)
Dairy Cattle Lactation (standard)
28. Produce testosterone. located between the seminiferous tubules
leydid or interstitial cells
Mares
vulva
Holstein Cow
29. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co
seminiferous tubules
effects of BST
reasons for castration
Holstein Cow
30. 45-60 days after breeding; re-breed as required
penis proper
hypothalamus and pituitary gland
effects of BST
dairy cattle pregnancy check
31. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation
colostrum
age and castration
Reasons for gestation length being affected
things to check for in a breeding soundness exam (BSE)
32. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).
epididymis: definition - 3 parts - 4 functions
sow ovulation
Holstein Cow
hormones
33. Microscopic - make sure not sterile - very few bulls are actually tested
why does the cow need fat deposits during pregnancy?
semen evaluation (BSE)
Dairy Cattle Lactation (standard)
vulva
34. Front feet and head first. (except for hogs and dogs)
hormones
age and castration
normal presentation of the fetus
sigmoid flexure
35. (LH) causes female's egg to break (her period)
behavioral signs of estrus
cremaster muscle
reasons for castration
Lutinizing Hormone in females
36. Prevent the cow from getting an infection from the calve
effects of BST
ewe ovulation
femininity of a heifer
Dairy calves are removed from cow at birth to...
37. Days which have decreasing daylight hours
38. Depository for semen during insemination. where urine leaves the body
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
vagina
cryptorchid
Dairy calves are removed from cow at birth to...
39. Animals which have many estrous periods per year (ex: cow - sow)
estrous
polyestrous
Lutinizing Hormone in males
Lutinizing Hormone in females
40. 336 days
mare gestation
butterfat
hormones
pelvis
41. Animal which has been castrated after puberty
leydid or interstitial cells
sperm cell
stag
ewe ovulation
42. 2 month growth cycle. stored in the epididymis of the bull
mastitis
Sperm growth rate
Follical Stimulating in males
Sperm survival specs
43. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.
pelvis
ewe estrus cycle
van deferens
why does the cow need fat deposits during pregnancy?
44. When are dairy cattle dehorned?
urethra
~1 month
uterus
Hormones from both the fetus and the mom.
45. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total
organs used in spermatogenesis
testis (gonads)
Sperm survival specs
semen evaluation (BSE)
46. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market
urethra
dairy cattle pregnancy check
hormones
reasons for castration
47. 283 days
penis sizes vs delivering methods
ewe gestation
ewe estrus cycle
cow gestation
48. Why Dairy calves are fed powdered milk.
1. more cost effective - 2. powdered milk is in excess production
penis sizes vs delivering methods
Mares
sertoli cells
49. 45-60 days after breeding; re-breed as required
#1 cost in production
hypothalamus and pituitary gland
dairy cattle pregnancy check
what has to happen for males for copulation to occur
50. 19-23 (21) days
sow estrus cycle
humans: stress level vs sperm
penis and prepuce observation (BSE)
ewe gestation